/**
 * Copyright (C) 2002-2015   The FreeCol Team
 * <p>
 * This file is part of FreeCol.
 * <p>
 * FreeCol is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 * <p>
 * FreeCol is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * <p>
 * You should have received a copy of the GNU General Public License
 * along with FreeCol.  If not, see <http://www.gnu.org/licenses/>.
 */


package net.sf.freecol.common.networking;

import net.sf.freecol.common.FreeColException;

import org.w3c.dom.Element;


/**
 * Handles complete incoming messages.
 */
public interface MessageHandler
{

    /**
     * Handles the main element of an XML message.
     *
     * @param connection The <code>Connection</code> the message came from.
     * @param element The <code>Element</code> to handle.
     * @return The reply (if any) or <i>null</i>.
     * @throws FreeColException
     */
    public Element handle( Connection connection, Element element )
            throws FreeColException;
}
